pgsql: Don't show tables redundantly when their schema is published.

Don't show tables redundantly when their schema is published.

A table published both explicitly and through its schema (FOR TABLES IN
SCHEMA) was listed twice by \dRp+ and \d. Since publishing a schema
publishes its tables in full, the explicit entry's row filter has no
effect; suppress it when the same publication also publishes the table's
schema.

Author: Peter Smith <smithpb2250(at)gmail(dot)com>
Co-author: Jim Jones <jim(dot)jones(at)uni-muenster(dot)de>
Reviewed-by: Nisha Moond <nisha(dot)moond412(at)gmail(dot)com>
Reviewed-by: vignesh C <vignesh21(at)gmail(dot)com>
Reviewed-by: Shlok Kyal <shlok(dot)kyal(dot)oss(at)gmail(dot)com>
Discussion: https://postgr.es/m/CAHut%2BPvSOmRrQX%2BVrFYHtFipV9hM%3Dp99FeOwYCzkuU2BOaLu7Q%40mail.gmail.com

Branch
------
master

Details
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https://git.postgresql.org/pg/commitdiff/1863452a4bfecfefc51336ecfc78837a164fbb10

Modified Files
--------------
src/bin/psql/describe.c | 25 ++++++++++++++++++++++++-
src/test/regress/expected/publication.out | 29 +++++++++++++++++++++++------
src/test/regress/sql/publication.sql | 5 +++++
3 files changed, 52 insertions(+), 7 deletions(-)